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Geo IR 85-92GHz
Date/Time_(UTC) Source Sensor Vmax(kts) ARCHER Lat Lon Geo-ref Lat Lon 50% cert. rad. 95% cert. rad. Eye diam (deg) % cert. of eye
20260603 19:15:58 * SSMIS-18 85-92GHz 49.5 36.64 145.30 36.67 145.60 0.49 1.38 0.30 1.6
20260603 15:46:21 AMSR2 85-92GHz 50.0 36.19 145.13 36.03 144.71 0.37 1.06 2.80 4.8
20260603 07:35:37 * SSMIS-17 85-92GHz 50.0 35.61 141.95 35.70 142.26 0.37 1.06 2.50 4.7
20260603 06:52:04 SSMIS-18 85-92GHz 50.0 35.54 140.84 35.40 140.25 0.42 1.19 3.00 3.5
20260603 06:51:57 SSMIS-18 85-92GHz 50.0 *** *** *** *** *** *** 3.30 ***
20260603 03:44:18 * AMSR2 85-92GHz 50.0 34.65 140.20 34.51 139.39 0.37 1.04 0.80 7.9
20260602 19:30:48 * SSMIS-18 85-92GHz 50.0 33.35 135.81 33.51 136.25 0.36 1.02 0.70 6.8
20260602 16:42:46 * AMSR2 85-92GHz 50.0 32.58 134.32 32.71 134.58 0.30 0.86 1.30 4.6
20260602 07:05:11 * SSMIS-18 85-92GHz 50.0 30.53 130.54 30.90 131.13 0.29 0.81 2.90 13.0
20260602 04:38:27 AMSR2 85-92GHz 50.0 30.01 130.48 30.25 130.82 0.42 1.19 3.80 5.8
20260601 22:11:04 SSMIS-17 85-92GHz 51.5 28.62 128.36 28.90 128.72 0.42 1.19 4.30 1.5
20260601 19:48:16 SSMIS-18 85-92GHz 55.0 28.45 128.48 28.58 128.62 0.42 1.20 3.10 4.8
20260601 19:46:57 SSMIS-18 85-92GHz 53.5 28.65 128.09 28.79 128.22 0.29 0.81 2.10 2.9
20260601 17:39:33 AMSR2 85-92GHz 55.0 28.03 127.64 28.00 127.64 0.41 1.17 2.60 3.3
20260601 07:17:55 * SSMIS-18 85-92GHz 58.9 25.84 127.64 26.05 127.67 0.27 0.76 1.50 16.3
20260531 20:02:21 SSMIS-18 85-92GHz 70.0 23.96 126.97 24.02 126.96 0.17 0.48 3.00 33.2
20260531 20:02:19 * SSMIS-18 85-92GHz 68.3 23.89 127.08 23.96 127.07 0.16 0.45 2.30 45.1
20260531 16:57:47 AMSR2 85-92GHz 70.9 23.45 127.37 23.53 127.34 0.14 0.40 2.10 73.5
20260531 07:31:51 * SSMIS-18 85-92GHz 71.3 22.05 127.92 22.22 127.91 0.12 0.35 1.40 85.0
20260531 07:31:09 SSMIS-18 85-92GHz 70.0 22.14 127.74 22.31 127.73 0.19 0.53 2.40 51.2
20260531 04:48:26 AMSR2 85-92GHz 70.0 21.70 127.92 21.81 127.90 0.15 0.42 1.60 73.1
20260530 20:17:28 * SSMIS-18 85-92GHz 66.9 20.56 128.33 20.58 128.31 0.19 0.53 1.90 66.4
20260530 20:13:45 SSMIS-18 85-92GHz 66.9 *** *** *** *** *** *** 1.80 ***
20260530 07:44:25 * SSMIS-18 85-92GHz 65.0 18.48 129.11 18.61 129.03 0.13 0.38 2.00 95.6
20260529 21:16:24 * SSMIS-17 85-92GHz 52.7 16.83 130.24 16.72 130.34 0.43 1.23 3.70 12.1
20260529 17:11:46 AMSR2 85-92GHz 49.3 16.51 130.91 16.53 130.87 0.32 0.90 2.70 22.4
20260529 08:42:14 * SSMIS-17 85-92GHz 42.3 16.12 131.89 16.09 131.92 0.32 0.90 2.80 16.8
20260529 04:59:13 AMSR2 85-92GHz 40.0 15.97 132.27 16.02 132.19 0.46 1.31 2.00 7.1
20260528 22:38:27 * SSMIS-16 85-92GHz 40.0 15.25 133.60 15.34 133.50 0.35 1.00 2.00 8.9
20260528 21:31:01 SSMIS-17 85-92GHz 40.6 15.45 133.83 15.33 133.94 0.44 1.24 2.10 5.4
20260528 19:06:16 SSMIS-18 85-92GHz 40.0 15.57 134.30 15.74 134.14 0.47 1.33 3.50 2.9
20260528 16:29:27 * AMSR2 85-92GHz 38.7 15.30 134.78 15.44 134.59 0.35 0.99 3.30 15.8
20260528 10:02:45 SSMIS-16 85-92GHz 33.4 *** *** *** *** *** *** 1.80 ***
20260528 06:30:56 * SSMIS-18 85-92GHz 30.0 13.04 136.56 12.96 136.56 0.31 0.89 0.70 7.0
20260528 04:15:33 * AMSR2 85-92GHz 30.0 13.06 135.90 13.12 135.90 0.40 1.13 2.30 7.1
20260527 19:21:35 SSMIS-18 85-92GHz 30.0 *** *** *** *** *** *** 1.90 ***
20260527 06:44:12 * SSMIS-18 85-92GHz 25.0 9.27 138.31 9.17 138.36 0.44 1.25 2.20 1.5

Key:

Date/Time: UTC time. If this observation is used in the track it is marked with a "*". If it is used for its own 3-hr window, it is put in bold.

Source/sensor: Satellite source of the analyzed image.

Vmax: Maximum winds listed in the forecast center analysis/forecast, *not* ARCHER.

ARCHER lat/lon: Coordinates of the ARCHER algorithm, valid at the time of the observation. If no center fix could be found, then it is "***".

Geo ref lat/lon: Coordinates of the ARCHER algorithm, valid at the time of the *nearest geo image*.

50% cert. rad.: Radius of the circle (in degrees) that defines the area in which the ARCHER center of rotation is 50% certain. The lower the number, the more certain the position.

95% cert. rad.: Radius of the circle (in degrees) that defines the area in which the ARCHER center of rotation is 95% certain.

Eye diam (deg): ARCHER-resolved eye diameter (in degrees). Green: robust, yellow: less certain, red: not robust.

% cert. of eye: Percent certainty that an eye exists in this image, determined by ARCHER. Currently only available for IR and 85-92 GHz imagery.

Links to related versions: ARCHER Track page

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